
Brandon Riley, MD
Assistant Professor of Psychiatry and Behavioral Medicine
Adult Psychiatry
Phone: 903-877-7168
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Yvonne Valentine, BA
Program Coordinator
Child and Adolescent Psychiatry
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Beverly J. Bryant, MD, ABPN
Chair and Associate Professor of Psychiatry and Behavioral Medicine
Child and Adolescent Psychiatrist
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Jamon Blood, MD
Assistant Professor of Psychiatry and Behavioral Medicine
Child and Adolescent Psychiatrist

Ralph de Similien, MD
Assistant Professor of Psychiatry and Behavioral Medicine
Adult Psychiatry

Tiya Johnson, MD
Assistant Professor of Psychiatry and Behavioral Medicine
Child and Adolescent Psychiatrist

Assistant Professor of Psychiatry and Behavioral Medicine
Child and Adolescent Psychiatrist

Andrew Oshiro, MD
Assistant Professor of Psychiatry and Behavioral Medicine
General Psychiatry

John Pogue, MD
Assistant Professor of Psychiatry and Behavioral Medicine
Adult Psychiatry

Phyllis Ramirez, MD
Assistant Professor
Adult Psychiatry
Phone: 903-877-7168
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Robert Wieck, DO
Assistant Professor of Psychiatry and Behavioral Medicine
Psychiatry Residency
Phone: 903-877-7168
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Arunditi Xantus, MD
Assistant Professor of Psychiatry and Behavioral Medicine
General Psychiatry Residency
Phone: 903-877-7168
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Ndukwe Uduma, MD
Assistant Professor of Psychiatry and Behavioral Medicine
Child and Adolescent Psychiatrist
Psychology

Andrew Schmitt, PhD
Psychology Section Chief, Director of Neuropsychology
Psychology Internship & Fellowship
Phone: 903-877-8721
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Stephanie Simmons, PsyD
Associate Program Director, Assistant Professor, Clinical Psychology
Psychology Internship & Fellowship
Phone: 903-877-7679
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Halle Ross-Young, PsyD
Assistant Professor, Psychiatry & Behavioral Medicine
Inpatient Psychology

Crystal Frazier, Psy.D, MPA
Assistant Professor Clinical Psychology
Program Director, Postdoctoral Fellowship
Phone: 903-877-7168
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Pelin Strebler, PhD
Assistant Professor, Neuropsychology
Psychology Internship & Fellowship

Joseph Whitehouse, PsyD
Assistant Professor, Psychiatry & Behavioral Med
Psychology Internship

Ronica Harper, MBA
Program Manager
Psychology Internship & Fellowship
Phone: 903-877-8125
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